R1 Concepts 623-54046R eLINE Drilled and Slotted 1-Piece Rear Passenger Brake Rotor

The R1 Concepts 623-54046R is an eLINE Series cross-drilled and diamond-slotted 1-piece rear passenger side brake rotor, engineered to deliver enhanced stopping performance over standard OEM replacements. This rotor is sold individually and features a black zinc-plated finish for a sharp appearance and long-lasting corrosion resistance.

Key Features:

• Cross-Drilled Holes: Reduce heat buildup on the rotor surface and are chamfered to minimize the risk of cracking under stress
• Diamond Slotted Design: Clears brake dust, debris, and gases from the pad surface, preventing glazing and extending both pad and rotor life. Diamond-tipped slot ends also serve as a wear indicator — when the tips are gone, it's time for replacement
• Black Zinc Plating: Applied to non-braking surfaces including the hub and inner vane structure to guard against corrosion, improving longevity and appearance
• Double Disc Ground Brake Surface: Promotes faster, more even brake pad bed-in and delivers quieter, smoother braking performance
• 1-Piece Construction: Rear passenger side (right) fitment; sold as a single rotor
• Manufacturer Part Number: ECB-54046R / 623-54046R

Upon initial installation, the entire rotor surface will be coated with the black zinc finish. During the break-in process, this coating will naturally wear away from the brake pad contact area, leaving the hub and internal vane structure protected. A proper bed-in procedure is recommended after installation for optimal performance and longevity.